CVE-2026-23019 : faille moyenne linux linux kernel (CVSS 5.5)

In the Linux kernel, the following vulnerability has been resolved: net: marvell: prestera: fix NULL dereference on devlink_alloc() failure devlink_alloc() may return NULL on allocation failure, but prestera_devlink_alloc() unconditionally calls devlink_priv() on the returned pointer. This leads to a NULL pointer dereference if devlink allocation fails. Add a check for a NULL devlink pointer and return NULL early to avoid the crash.

Sévérité

Moyenne (CVSS 5.5)

Vecteur CVSS

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation active

Non signalée par la CISA

Publication

31 janv. 2026

Dernière mise à jour

14 juil. 2026

• linux linux kernel

• Fiche CVE-2026-23019 sur le NVD (NIST)
• git.kernel.org/stable/c/325aea74be7e192b5c947c782da23b0d19a5f…
• git.kernel.org/stable/c/326a4b7e61d01db3507f71c8bb5e85362f607…
• git.kernel.org/stable/c/3950054c9512add0cc79ab7e72b6d2f9f675e…
• git.kernel.org/stable/c/8a4333b2818f0d853b43e139936c20659366e…
• git.kernel.org/stable/c/94e070cd50790317fba7787ae6006934b7edc…
• git.kernel.org/stable/c/a428e0da1248c353557970848994f35fd3f00…
• cert-portal.siemens.com/productcert/html/ssa-019113.html